1. World Health Organization. Research for International Tobacco Control. WHO report on the global tobacco epidemic, 2008: The MPOWER package. World Health Organization; 2008.
2. World Health Organization. WHO report on the global tobacco epidemic, 2013: Enforcing bans on tobacco advertising, promotion and sponsorship. World Health Organization; 2013.
3. U.S. Department of Health and Human Services. The Health Consequences of Smoking: A Report of the Surgeon General.S. Department of Health and Human Services; 2004.
4. Tobacco and oral health – The role of the world health organization;Petersen;Oral Health Prev Dent,2003
5. Tobacco and oral health: attitudes and opinions of European dentists; a report of the EU working group on tobacco and oral health;Allard;International dental journal,2000